Climate warming is significantly influenced by rising summer maximum temperatures:insights from tree-ring evidence of the Western Tianshan Mountains,China

Meng Ren ¹Yu Liu ²Qiufang Cai ³Qiang Li ⁴Huiming Song ⁴Changfeng Sun ⁴Tao Xu

扫码查看

作者信息

1. The State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,People's Republic of China;Xi'an Institute for Innovative Earth Environment Research,Xi'an 710061,People's Republic of China;Institute of Desert Meteorology,China Meteorological Administration,Ürümqi 830002,People's Republic of China
2. The State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,People's Republic of China;Center for Excellence in Quaternary Science and Global Change,Chinese Academy of Sciences,Xi'an 710061,People's Republic of China;School of Human Settlements and Civil Engineering,Xi'an Jiaotong University,Xi'an 710049,People's Republic of China;Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,People's Republic of China
3. The State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,People's Republic of China;Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,People's Republic of China
4. School of Human Settlements and Civil Engineering,Xi'an Jiaotong University,Xi'an 710049,People's Republic of China
折叠

Abstract

As one of the regions most affected by global cli-mate warming,the Tianshan mountains has experienced sev-eral ecological crises,including retreating glaciers and water deficits.Climate warming in these mountains is considered mainly to be caused by increases in minimum temperatures and winter temperatures,while the influence of maximum temperatures is unclear.In this study,a 300-year tree-ring chronology developed from the Western Tianshan Moun-tains was used to reconstruct the summer(June-August)maximum temperature(Tmax6-8)variations from 1718 to 2017.The reconstruction explained 53.1％of the variance in the observed Tmax6-8-Over the past 300 years,the Tmax6-8 reconstruction showed clear interannual and decadal vari-abilities.There was a significant warming trend(0.18 ℃/decade)after the 1950s,which was close to the increasing rates of the minimum and mean temperatures.The increase in maximum temperature was also present over the whole Tianshan mountains and its impact on climate warming has increased.The Tmax6-8 variations in the Western Tianshan mountains were influenced by frequent volcanic eruptions combined with the influence of solar activity and the sum-mer North Atlantic Oscillation.This study reveals that cli-mate warming is significantly influenced by the increase in maximum temperatures and clarifies possible driving mech-anisms of temperature variations in the Western Tianshan mountains which should aid climate predictions.

Key words

Tree rings/Western Tianshan mountains/Temperature change/Climate warming

引用本文复制引用

基金项目

Second Tibetan Plateau Scientific Expedition and Research(2019QZKK0101)

China Desert Meteorological Science Research Foundation(Sqj2022012)

Natural Science Basic Research Program of Shaanxi Province(2023-JC-QN-0307)

National Natural Science Foundation of China(42361144712)

Chinese Academy of Sciences(XDB40010300)

State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,CAS(SKLLQG2022)

出版年

2024

林业研究(英文版)

东北林业大学,中国生态学学会

林业研究(英文版)

CSTPCDEI

影响因子：0.365

ISSN：1007-662X

段落导航